Decades before Superman became the hero of Earth, his family was fighting for its survival. Krypton, a new show from Syfy that will act as a straight-up Superman prequel series, just got its first trailer on Tuesday, and it looks like long-time DC and Superman fans are in for a real treat with this one.

“The story of my family is one of triumph and sacrifice,” Seg-El, Superman’s grandfather, says in the new trailer. Seg-El will be portrayed by Cameron Cuffe (Florence Foster Jenkins) and looks to be in his mid-twenties by human standards in this series. Seg-El speaks about how his family previously “led a revolution against tyranny. And now it falls on my shoulders to save my world.”

When Adam Strange, portrayed by Shaun Sipos, shows up to warn Seg-El of an impending doom, Seg-El has to jump into action to save his world — and the universe at large.

“Someone from the future is coming to destroy Krypton because, where I’m from, your grandson becomes the greatest hero of the universe,” Adam tells Seg-El. In DC’s comics, Adam Strange similarly travels back in time to warn Superman’s grandfather of a plot to destroy Superman even before his birth. Adam Strange will be joined by Brainiac, a classic DC villain with, of course, ties to Superman. Brainiac will be portrayed by Blake Ritson.

Cameron Cuffe as Seg-El in 'Krypton.'

Here’s the show’s official synopsis:

What if Superman never existed? Set two generations before the destruction of Superman’s home planet, Krypton follows Seg-El (Cameron Cuffe), the legendary Man of Steel’s grandfather, who is faced with a life and death conflict – save his home planet or let it be destroyed in order to restore the fate of his future grandson. With Krypton’s leadership in disarray and the House of El ostracized, Seg finds himself in a difficult position. He must redeem his family’s honor and protect the ones he loves while being challenged by familiar DC characters Brainiac (Blake Ritson) and Earthly time-traveler Adam Strange (Shaun Sipos).

Krypton premieres on Syfy on March 21.

Photos via SYFY